perlman



LOUIS H. PERLMAN, F NEW YORK, N. Y.

WHEEL. g

Specicatonof Letters Patent.

Patented June 17, 191,9.

Application filed September 23, 1916. Serial No. 121,829.

To all whom t may concern:-

Bo it known that I, Louis H. FERLMAN, a

citizen ot' the United States,.residing at New York city,in the county of New York and State of New York, have invented certain new and useful Improvements in lVheels; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. i' A This invention relates to improvements in vehicle wheels of -the'type especially well adapted for' use on automobiles, and more particularly relates to that-type of wheel structure which has come to be 1Known as a quick-detachable ldemountalole The objectL in view is the provision of an efhcient tire locking means together with an eflicient rim locking means so designed and operating relativeto each other as not to conflict, and leaving each readilyaccessible for operation independent of the other'.

In this art some difliculty has been expe* rienced from the fact that the apparatus provided for retaining a removable flange on the demountable rim has rendered inacces rangements of parts as subsequently specilied and claimed.

In the accompanying draw1ng,- Figure l 1s a View in s1de elevation of a wheel embodying the features of the present invention, the hub portion and parts of shown.

the spokes being broken away.

Fig. 2 is a section taken on the plane indicated by line 2--2 of'Fig. 1.

Fig. 3 is' a section similar' to Fig. 2 but taken. approximately in the plane of the cross-cut of the removable side flange.

Fig. 4 is a plan view of a fragment of the demountable rim.

' Fig. 5- is a fragmentary view, partly in side elevation and partly insection, lparts beingbroken away to disclose the section on 4the plane indicated `by line 5--5 of F ig. '4 a portion' of the wheel body beingalso 6 is a fragmentary side elevation of duce the groove l0 provides an underhangcontour as flange 8,' bu-t'within those planes the terminal portions of the removable o liangei'detached. l

Fig. 7 is a fragmentary plan view of the wheel body.

Referring to the drawing by numerals, l indicates the spokes, 2 the wood folly, and 3 s the folly band'or'fixed rim of the wheel body. The wheel body is of the ordinary type with. the exception that the :telly band has its inner edge formed with the usual outwardly-flaring stop flange l, and has its 6 outer' edge formed with an inwardly-tapering or converging stop flange 5, the flange being vshaped to have substantially the same contour as flange 4, but of less diameter, each being provided with an inclined wall 6. Mounted onthe wheel body is a demountable rim 7 having at. its inner edge the usual Atire bead-engaging flange 8 which may be ot' any conventional type, and at its outer edge the tire bead-engaging flangefl ofl similar shape. 7.

The flange 9, as is true of all ordinary Q. l). I riins,'is detachably connected with the rim 'I so as to be removed in order to enable the removal and replacement of tires having hard non-elastic marginal beads of approximately the same diameter as the outer face oit the demountable rim.

The material of the rim 7v adjacent its outer edge is stampedinward to produce an inset annular groove l0 having straight radial walls for a short distance, and then the wall curving outward is formed into a slightly upwardly Curved flange 1l. rllhat portion of the rim which is stamped to proing annular shoulder 12 adapted in operation to rest against the curved portion 6 of llange The uppermost edge of the flange ll is ofless diameter than the Vdiameter of the outer face of the base of rim 7, so that when the flange 9 is not in place, the beads of a tire may pass readily across the flange '11. Beyond the planes of the outer face of' the base of rim 7, the flange' 9 is of the sane the flange curves to conform to the curvature of the upper faille of flange 11, and is then bent to form an abruptly turned annular bead 12 fitting snugly within the groove 10. The flange 9 is sprung into and out of place within 'the groove and is enabled to be thus sprung by virtue of the fact that it is cut at 13.- The flange is held against acciin the telly 2.

dental dislocation from its seat by having its ends formedvwith radially inwardly extending projections 14, 14, extending through aperture 1st formed through the material of rim at one point oi" the base of groove 10i The under .tace of the ilange 11 is inclined upward from the flange 5 and the upper aee. of the flange 5 is inclined downward so as to provide an axial-opening substantially V- shaped groove into which groove extend the "if -shaped or wedge ends 'of the locking plates- 16 of which there are a number spaced preferably equally about the Wheel. The number of plateswill Avary according to the size of the wheel, and Ieach consists of a substai'itially. iat plate aperturcd centrally, as at 17, and having` at its inner end a lip or flange 18 adapted to engage the telly 2, and at its outer edge the wedging or tapered edge disposed between the flanges 5 and 11. aperture 1T is flared inward to accommodate radial or rocking movement oit' the plate, the aperture being primarily intended to permit the passage of a retaining bolt 19 which extends through and is appropriately fixed A nut 2O enga-ges plate 16 for operatively actuating the saine.

occurs when the tire is defiated.

A wearing plate 2l is preferably iixed toI the telly 2 to receive the wear from. the flange 18 in lieu of having the flange directly engage the wood telly 2.

In operation,I the tire is applied and removed substantially after ,the manner of manipulating the ordinary quick detachable' rim structure, the operation consisting in prying out one of the projections 14 from aperture'lt, as by inserting a tool between one end of the flange 9 and the flange 11, and springing the end ot' the flange 9 out of its seat. The flange is then` sprung from the groove until a sufficient portion is out of the seat to enable the flange to be readily lifted away from the rest of the rimT lt, should he understood, ofcourse, that this operation lhe detective tire is then removed with `an axial sliding movement and a fresh tire replaced with a similar movement. Then one pro- `icction 1-1- is inserted through aperture 14', and the flange ring 9 is gradually worked into groove 10, upon complet-ion of which the other projection 14 snaps through aperture 16V, and the parts are thus rigidly locked together. The tire is then inflated and the rim is ready for use.

So far the operation of the demoun-table 'feature of rin; 7 is concerned.J the rim may he readily removed by merely backing oit thclnuts Q0, withdrawing'the plates 16 and then sliding or rocking the rim 7 axially The y od of the wheel. The rim is replaced by a converse movement until the inner portion ci the rim and the shoulder 12 strike the curved portions 6, and then theplates 16 are replacedv and the nuts. 20. threaded onto the bolts `a sufiicient distance 'for drawing up the plates and wedginpthe run 7 to a teusioned position on the feily band, whereupon the parts are in condition for use.

lt is obvious, ofcourse, that instead of completely removing the plates 16, the nuts 2O may be backed oil' a distance sufficient to allow the' plates to be'revolved say for a quarter of a revolution so as to be out of the y 15 in the direction of the circumference of? the rim is such as to snugly receive the free ends of the projections 14 so that said projections may serve as a driver to prevent creeping of the demountable rim on wheel body; that is to say, to prevent relative angular shiftingf of said parts. Aditi-- tional drivers may be employed if desired but ordinarily the projections 14 and their engagement with the end Walls 15 will be found adequate.

- What Iclaim is A deinountable rim comprising a substantially cylindrical main body and a tire bead retaining flange at one edge, the main body being formed with a seat for a tire bead retaining flange at the other edge, the said seat being vshaped intoA an annular groove having relatively abrupt corners opening` into a substantially axially extending portion curving gradually in a direction away from the axis of the rim and having its free edge ot' a dia-meter not exceeding that of the cylindrical portion of the main body, and a cross-cut detachable ange removably seated in said seat and having that portion engaging the seat conforming to the contour thereof.

In testimony whereof I atlix' my signature 115 

